Stenciling machine



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W. R. HAMUN STENCILING MACHINE Fild March 28. 1928 ,6 Sheets-Sheet171/?) (3 1 "@625 B..f/ Q 77LZ/ his Jan. 7, 1930.

W. R. HAMLIN STENCILING MACHINE Filed March 28. 1928 6 Sheets-Sheet Jan.7, 1930. R, HA L N 1,742,249

STENCILING MACHINE Filed March 28. 1928 6 Sheets-Sheet 5 Jan. 7, 1930.w. R. HAMLHN STENCILING' men-ma 6 Sheets-Sheet 4 Filed March 28, 19287we1 125 7: 1e ELEZJIQZZIZ a.

W. R. HAMLIN STENCILING MACHINE Filed March 28. 1928 Jan. 7, 1930.

" 6 Sheets-Sheet 6 15 sheet material beneath the 30 squeegee.

' Patented Jan. 7, 1930 UNITED STATES PATENT OFFICE WILFRED R. HAMLIN,OF BOSTON, 'MASSACHUSETTS, ASSIGNOB- OF ONE-HALF TO RUSSELL G. REILLY,OF CAMBRIDGE, MASSAGHUSETT srmrcrmne madnmn Application filed March28,1928. Serial No. 265,477.

Thisinvention relates to improvements in stenciling machines, andparticularly to a poweroperate'd machine for printing multicoloreddisplay cards, posters and the like.

machine of the character mentioned in which the printing operation isperformed by moving the stencil beneath the squeegee While the latter isheld stationary and in contact with the stencil, the material upon whichthe printing operation is to be performed being moved in the samedirection and at the same speed as the stencil between the latter and anoscillating segmental drum which supports the point where it is engagedby the squeegee.

Another obj vide a novel means for feeding the sheets of material one byone to the printing instrum'entalities, the printed sheet being autosmatically released after the printing operation, and being dischargedfrom the machine V 13 1s shdably by moving belts.

Another object of the invention. is to provide a novel means forsupplying coloring material to the squeegee and stencil, together with ameans for moving the squeegee into cont-act with the stencil while thelatter is being moved in onedirection beneath the Still another objectof the invention is to provide a -means forloosening and removing fromthe surface of the sheet material small particles of foreign matterwhich often adhere thereto. 1

The invention consists "in a stenciling machine as set forth inthefollowing specification and particularly. pointed out in the claimsthereof.

Referring to the drawings:

Figure 1 represents a plan view' of a stenciling machine embodying myinvention.

Fig. 2 is a front elevation of the machine. Fig. 3 is an end elevationof the machine as viewed from the right hand side of Fig. 1.

' Fig. 4; is an enlarged detail sectional elevation taken onthe line4-4.of Fig. 1.

Fig. 5 is an enlarged detail sectional elevation of the squeegee andreservoir for the col- The object of the invention is to provide a.

ect of the invention is to pro prring material, as taken on the line 5-5of 1g. 3. p Fig. 6 is a detail sectional view taken on the" line 6 6 ofFig. 5.

Fig. 7 is an enlarged detail sectional ele vation taken on the line 7-7of Fig. 4, looking in the direction of the arrows on said line, .themechanism being illustrated in the position it assumes when the grippingfingers for the sheet material are closed. Fig. 8 isa View similar toFig. 7, but illustrating the mechanism in the position it assumes whenthe gripping fingers for the sheet a material are open.

Like numerals refer to like parts through- 5 out the several views ofthe drawings.

.In the drawin s, 10 represents side frames which are space apart andheld rigidly secured relatively to each other by a plurality of tie rods11. Mounted at the top of each of the side frames 10 is a cylindricalguide 12 upon which a reciprocatory auxiliary frame mounted. Thereciprocatory frame 13 embodies therein a pair of side bars 14, each ofwhich is rigidly secured at its opposite ends to bearing members 15, andthe side bars 14 are rigidly secured together to move in unison by across bar 16 of channel construction.

Mounted upon the reciprocatory frame 18 so is a main stencil frame 17,one end of said stencil frame being rigidly secured to the cross bar 16,and theother end of said stencil frame being supported upon a rod 18,which. in turn, is mounted at its opposite ends in the 35 side bars 14.A pair of brackets 19 are employed in securing the stencilframe 17 tothe rod 18.: An auxiliary stencil frame 20 is mounted within the mainstencil frame'17, being pivoted thereto by a pair of hinges 21, apivotal pin 22 of which may be removed from the hinges when it isdesired to remove the auxiliary stencil frame from the main latter beingmanipulated when it isdesired to raise the auxiliary stencil frame toexamine a stencil 24 of well known form which is attached thereto. Across member 25 of the auxiliary stencil frame 20 is slidably mounted atits oposite ends in the auxiliary frame 20 and said cross member isadjusted to vary the tension upon the stencil 24 by means of a pluralityof adjusting screws 26 which extend through said cross member and into aportion of the frame 20.

The mechanism for imparting the reciprocating movement to the frame 13is as follows :Mounted in the side frames 10 is a driving shaft 27 uponwhich a tight pulley 28 and a loose pulley 29 are mounted. The drivingshaft 27 has a pinion 30 fastened thereto which meshes with and drives agear 31 fastened to a cam-shaft 32. An arm 33 is rigidly fastened to oneend of the cam shaft 32 and is operatively connected by means of a link34 with an arm 35 rigidly fastened to one end of a rock shaft 36 whichis mounted in both of the side frames 10. A segmental gear 37 is rigidlyfastened to the rock shaft 36 and meshes with a gear 38 rigidly fastenedto a countershaft 39 mounted in both of the side frames 10. Thecountershaft 39 has a gear 40 rigidly secured thereto at each endthereof and said gears mesh with racks 41 which are fastened rigidly toand extend longitudinally of the side bars 14 of the reciprocatingauxiliary frame 13.

Sheetsof material a upon which the design of the stencil 24 is to beprinted are located in a pile A upon a table 42 which is supported atone end thereof upon brackets 43 and 44, in turn mounted upon otherbrackets 45 and 46 respectively, which are fastened to the side frames10. The outer end of the table 42 is supported by a pair of rods 47which are attached at their upper ends to the table and at their lowerends to the side frames 10.

The attendant of the machine takes the sheets of material a from thepile A and in order that said sheets may be correctly positioned to bepicked up by the feeding mechanism, a plurality of positioning fin ers48 are provided at one end of the table 42. Another positioning finger49 is located at one side of the table 42 and all of said fingers 48 and49 project a short distance above the upper surface of the table 42.After the sheet material a has been placed at the forward end of thetable with the edges of said sheet in contact with the front faces ofthe positioning fingers, said sheet material is held against saidfingers by a plurality of flat springs 50 which are mounted at one endthereof upon a rock shaft 51, which is located above the table 42, andwhich is supported at one end thereof in the bracket 44 and in anotherbracket 44 which is located beside the bracket 44.

The fingers 48 and 49 are rigidly fastened to shafts 52 and 53respectively. The shaft 52 is mounted in bearings 54 which are supportedupon the brackets 45 and 46, while the shaft 53 is mounted in a singlebearing upon the bracket 45. The shaft 52 has a bevel pinion 56 rigidlyfastened thereto which meshes with a similar bevel pinion 57 rigidlyfastened to the shaft 53. An arm 58 is rigidly fastened to the shaft 52and said arm is connected by a rod 59 with an arm 60 loosely pivotedupon the driving shaft 27. A cam roll 61 is rotatably mounted upon thearm 60 and said cam roll bears against the periphery of a cam 62fastened to the cam shaft 32. A spring 63holds the cam roll 61 againstthe surface of the cam 62. Another rod 64 operatively connects the arm58 with another arm 65 which is rigidly secured to the rock shaft 51.

After the sheet of material a has been placed in position to be grippedby the feed ing instrumentalities and before the latter are operated tofeed said sheet of material, the cam 62 operates to remove thepositioning fingers 48 and 49 from engagement with the edge of the sheetof-material, and out of the path through which the sheet of material isfed; and at the same time the shaft 51 is rocked to lift the springs 50from engagement with the upper surface of the sheet of material and intoa position where they will not interfere with the movement of saidsheet.

The mechanism for feeding the sheet of material a into a position tohave the design upon the stencil 24 transferred thereto is as follows:Extending transversely across the machine and mounted in bearings whicheither form a part of, or are secured to the cross bar 16, is a shaft 66upon which are mounted a pair of arms 67. The arms 67 are so positionedupon the shaft 66 that they may swing upwardly and downwardly betweenthe'inner sides of the side frames 10 and the edge of the main stencilframe 17. Rotatably mounted upon a portion 68 of each of the arms 67 isa cam roll 49. The cam roll 69 of each arm 67 engages the edge of astationary cam 7 0, one end of which is supported upon one of the tierods 11, and the other end of which is supported by a brace rod 72 whichextends from one end of the cylindrical guide to the side frame 10.

Another portion 73 of the arms 67 terminates in a bearing portion 74inwhich a shaft 75 is mounted to rock. An angle bar 76 extends between thearms 67 adjacent to the bearing portions 74 of the latter and mountedupon said angle bar are a plurality of spring fingers 77. Rigidlysecured to the shaft 75 and located in alignment with the fingers 77 areother fingers 78. The outer extremities of the fingers 78 project intonotches 79 provided therefor in the forward end of the table 42. A bevelpinion 80 is,

rigidly fastened to the shaft 75 and said pin ion meshes with a bevelpinion 81 which is rigidly fastened to a shaft 82, which is mounted insuitable bearings provided in the arm secured to a shaft 85 also mountedin the arm 67. An arm 86 is rigidly secured to the shaft 85 and whenthereciprocating frame 13 and arms 67 are located in the positionsillustrated in Figs. 2 and 4 the arm 86 engages a dog 87 which isfastened to the inner surface of one of the cams 70, see Fig.7, and thefingers 77' and 78 will be located in their closed position, grippingthe edge portion of the sheet of material a. When upon being movedtoward the left, Fig. 1, the main stencil frame reaches its otherextreme" position, the arm 86 will engage a stop 88 which is alsosecured to the cam 70 near its outer end, see Fig. 8. The fingers 77 and78 are held firmly closed during the feeding movement of the sheet ofmaterial a and open during the return movement of the arms 67 by amechanism as follows z-Referring particularly to Figs. 7 and 8, 89represents a stop member which is rigidly secured to the shaft 85. Thestop member embodies therein arms 90 and 91 in which are mountedadjusting screws 92 and 93 respectively. A-n arm 94 is rigidly fastenedto the shaft 85 and the outer .extremity of said arm is connected by abowed link 95 to one end of a spring 96, the outer end of said springbeing attached in any suitable manner to the portion 68 of the arm 67.\Vhen' the reciprocating frame 13 and arms 67 reach their extremepositions toward the right, Fig.

2, and the arm 86 engages the dog 87, the shaft 85 is rocked into theposition illustrated in Fig. 7 at which time the adjusting screw 92engages the side of the arm 67 and the spring 96 and link 95 will act tohold said adjusting screw 92 against the side of said arm. At this timethe fingers 77 and 78 will be closed, and gripping the 'sheet ofmaterial a. When, however, the reciprocating frame 13 and arms 67 aremoved to their extreme position toward the left, Fig. 2, and the arm 86engages the stop 88, the shaft 85 and associated parts will be rockedinto the position illustrated in Fig. 8, at which time the adjustingscrew 93 will be located in engagement with the side of the arm 67 andatthis time the spring 96 and link 95 will be located in a position tohold the fingers 77 and 78 open. In each instance when the sha t 85 isrocked bythe engagement'ofthe arm 86 witheither the dog 87 or the stop88 the rocking movement of said shaft will be transmitted through thebevel pinions 84, 83,: 81 and 80 to the shaft 75, which upon beingrocked, will move the fingers 78 relatively to the fingers 77. Thefingers 77 are stationary except for a slight yielding movementwhen thefingers 78 are operated. 7

During the printing operation, the sheet of material a is supportedbeneath the stencil 24 upon a segmental drum or support 97 which isrigidly secured to-the countershaft 39, said support having anoscillating movement imparted thereto by means of the mechanism whichimparts the reciprocating movement to the frame 13.

At the completion of the printing operation, sheets of material a uponbeing released by the fingers 77 and 78, drop upon a plurality of belts98 which travel over rollers 99 and 100, the former being mounted insuitable bearings provided therefor in the side frames 10, and theroller 100 being mounted in bearings 101 mounted upon the brace rod 72.The roller 100 is rotated by a belt 102 from a'pulley 103 fast to thecam shaft 32.

The mechanism which is employed in transferring the design of thestencil 24 to the sheet of material a is as follows :Mounted in bearings104, which are adjustably secured by screws 105 to the top of the sideframes 10, is a shaft 106, and pivotally mounted upon. said shaftatoppositeends thereof adjacent to the bearings 104, are rocking frames107 and 108. Adjusting screws 109 are provided for each of the rockingframes, being adapted to engage the top of the side frames 10 and limitthe extent to which said rocking frames may be moved toward said sideframes.

Mounted in the rocking frames 107 and 108 is a shaft. 110 to which apair of arms 111 are rigidly secured. A main body portion 112 of areservoir 113 for coloring material is detachably secured by means ofthumb screws 114 to the arms 111. The body portion 1120f the reservoir113 is sheet material and a top portion 115 and front portion 116thereof are closed, whereas said body portion is open at the rearthereof at 117 and upon the under side thereof at 118. The rockingframes 107 and 108 are both slotted at 119 and a shaft 120 extendsbetween said rocking frames with its end portions projecting throughtheslots 119 thereof. A bearing member 121 is mounted upon each end ofthe shaft 120'and projects into and partlythrough the slot 119. Theshaft 120 ,is clamped securely within the bearing 121 and the latter isclamped securely within the slot 119 by means ,of' nuts 122 which arelocated upon the extremities of the shaft 120, see Fig. 6. Rigidlysecured to the shaft 20 are arms 123 which constitute supports for abottom member 124 of the reservoir 113. structed of sheet material andextends between the side portions of the reservoir and partially closesthe opening through the under side of the reservoir. The bottom member124 terminates at its forward end in a downwardly projecting flange 125.Secured to the under surface of the bottom member 124 is an angle member126 which has a downwardly projecting flange 127 formed The bottommember 124 is.

constructed of gages the lower edge of the front portion 116 of thereservoir 113 and co-operates with the bottom member 124 of thereservoir to close said reservoir. Rigidly secured to the shaft 120adjacent to the inner surface of the rocking frames 107 and 108 are arms131, each of which is connected by a rod 132 to a lug 133, which isformed integral with each of I the rocking frames. A spring 134surrounds the rods 132, the lower end ofisaid spring bearing against theupper surface of the arm 131, and the upper extremity of saidspringbearing against the under surface of the lug 132. By loosening theshaft 120 within the rocking frames'107 and 108, and by manipulating athumb nut 135, the position of the lower edge of the squeegee 128 may bevaried and at thesame time the normal inclination of the squeegee withrelation to the surface of the stencil maybe Varied by moving the shaft120 up and down within the slots 119. An arm 136 is rigidly secured tothe shaft 110 and said arm is connected at its outer extremity by aconnecting rod 137 with a lever 138 which is pivotally mounted upon. theshaft 27. Theopposite extremity of the lever 138 from that to which therod 137 is secured has a pair of cam rolls 139 rotatably mountedthereon, which engage the periphery of a pair of similar cams 140, whichare fastened to the shaft 32.

The weight of the. rocking frames 107 and 108 and parts carried therebyis sufficient to hold the cam rolls 139 against the periphery of thecams 140, and as the latter are rotated, a rocking movement is impartedto the lever .138 to pull the connecting rod 137 downwardly, whereuponthe rocking frames 107 and 108, together with the reservoir 113 andparts associated therewith, are moved toward the stencil 24 as thelatter moves therebeneath, until the adjusting screws 109 engage the topof the side frames 10 at which time the lower edge of the squeegee 128is brought into contact with the upper surface of the stencil 24.

After the squeegee 128 contacts with the stencil 24, a continuedmovement of the lever 138 and connecting rod 137 imparts a rockingmovement to the shaft'110, and the body portion 112 of the reservoir 113is moved forwardly a. short distance, thereby separating the lower edgeof the front portion 116 of said reservoir from the front surface of thesqueegee 128. This permits some of the coloring material to pass throughthe discharge opening thus formed to be deposited upon the surface ofthe stencil, and as the latter is moved beneath the squeegee, a smallquantity of this coloring material passes through the meshes of the silkof which the stencil is constructed and transfers to the sheet ofmaterial a the designof the stencil in a'well known manner.

It often happens that the sheets of material ahave small particles ofdust or other foreign matter clinging thereto, and if these particlesbecome transferred from the sheet material to the stencil, the lattersoon becomes clogged, so that the coloring material will not passtherethrough in the proper manner. In order to prevent these particlesof foreign matter from being transferred to the stencil,'a means isprovided for first loosening said material, and then for removing theloosened particles from thematerial. This mechanism is as followsMounted in a pair of brackets 141 which are fastened to the edges of theside frames 10 is a casing 142 which constitutes a vacuum chamber, andthe latter has a suction orifice 143 extending longitudinally thereofwhich is located adjacent to the path taken by the sheet of material aas it passes from the table 42 to the .printing instrumentalities.

Secured to one of the sides of the casing 142 is a brush 144, thebristles of which are adapted to engage the surface of the sheetmaterial as it passes to the printing instrumentalities/ The suctionorifice 143 is located between certain of the rows of bristles of thebrush 144. The casing 142 is adjustably mounted within slots 145provided in the one from the pile A and places said sheets upon theupper surface of said table with the front edges of the sheets againstthe positioningfingers 48, and with one of the side edges against thepositioning finger 49. The cam 62 now operates to impart a rockingmovement to rock the shaft 51 to lift the springs 50 from engagementwith the upper surface of the sheet material, and to rock the shafts 52and 53 to move the fingers 48 and 49' from engagement with the edgeofthe sheet and out of the path thereof. The sheet of material a is nowpickedup by the fingers 77 and 78 and the frame 13 carrying with it thearm 67 immediately starts to move toward the left in Figs. 2 and 4.During the first part of the movement of the arm 67,.the outer endthereof, which carries the gripping fingers for the sheet of material arises quite quickly, this movement being caused by the cam roll 69travelling over the cam 70. At the same time that the outer end of thearm 67 starts to move upwardly, thesegmental drum 97 starts to moveupwardly from the position illustrated in Fig. 4. As the sheet of paperstarts upwardly, the upper surface of said paper is moved across thebrush 144, and in front of the suction orifice 145 and any particles offoreign matter that may be clinging to the surface of the sheet materialwill be loosened therefrom and drawn into the suction orifice by theaction of the brush and suction mechanism.

During the interval that the sheet of material a is moving upwardly, theframe 13 carrying the main stencil frame 17 and auxiliary stencil frame20 is moving toward the left, Figs. 2 and 4, and toward the reservoir113 for the coloring material and squeegee 128, and both of the latterare moving downwardly toward the stencil 24, and after the cross member25 of the auxiliary stencil frame has passed beneath the squeegee 128,the latter is brought down into engagement with the upper surface of thestencil. The adjusting screw 109 of the rocking frames 107 and 108 areso positioned that the rocking frames will come to a stop when thesqueegee 128 engages the stencil with the proper amount of pressure,after which the front portion 116 of the reservoir 113 openssufficiently for a certain amount of coloring material to pass betweenthe lower edge of the front member 116 and the adjacent face of thesqueegee 128, and as the stencil continues to move beneath the squeegee,the coloring material passes through the stencil and is deposited uponthe upper surface the sheet of material a is fed upwardly, it isgradually brought into contact with the periphery of the segmental drum97 by which it is supported during the printing opera tion. During theprinting operation therate of speed atwhich the sheet of material a isfed .beneath the stencil is exactly the same as the speed of thestencil. At the end of the feeding movement of the sheet of material athe arm 86 engages the stop 88 and a rocking movement is imparted to theshafts and 82 to move the g the fingers 7 thereby releasing the sheet ofmaterial a and allowing the' same to drop upon the belts 98 by which thesheet of ma-' terial is fed from the machine.

During the return movement of the arms 67, the fingers 77 and 78 areheld in their open position already to grip the next sheet of material awhen the arm 86 contacts with the dog 87. At the end of the printingoperation, during the first part of the rocking movement of the lever138 to lift the reservoir 113 and squeegee 128, thefront portion 116 ofthe reservoir moves backwardly into engagement with the front face ofthe squeegee, thereby closing the discharge orifice of the reservoir andpreventing any more of the coloring material from being depg'sited uponto position: sheet material of the sheet of material a. As

gripping fingers 78 away from the stencil. The reservoir and squeegeeare then returned to their normal raised position.

I claim: 1. A stenciling machine having, in combination, a main frame,an auxiliary frame slidably mounted upon said main frame, a stencilmounted upon said auxiliary frame, means for supplying coloring materialfor the stencil, a squeegee upon said main frame, means to move thesqueegee into and out of contact with the stencil, means to impart areciprocating movement to the auxiliary frame whereby the stencil iswiped across the surface of the squeegee in one direction, means to feedsheet material into contact with the stencil, whereby a design upon thelatter is printed on said sheet material as the stencil passes beneaththe squeegee, and an oscillating drum supporting the sheet material during the printing operation.

2. A stenciling machine having, in combination, a main frame, anauxiliary frame slidably mounted upon said main frame, a stencil mountedupon said auxiliary frame, means for supplying coloring material for thesten- 011, a squeegee upon said main frame, means to move the squeegeeinto and-out of contact with the stencil, means to impart areciprocating movement to the auxiliary frame whereby the stencil iswiped across the surface of the squeegee in one direction, a table,means upon said table, means to move said positioning means out of thepath of said sheet material, and means to grip the sheet material andfeed the same into contact .with the stencil, whereby a design upon thelatter is printed upon the sheet material as the stencil passes beneaththe squeegee.

3. A stenciling machine having, in combination, a main frame, anauxiliary frame slid ably mounted upon said main frame, a stencilmounted upon said auxiliary frame, a reservoir for coloring material, asqueegee associated with said reservoir, means to move the squeegee intoand out of contact with the stencil and also to deposit coloringmaterial upon the latter, means to impart a reciprocating movement tothe auxiliary frame whereb the stencil is moved across the surface ofthe squeegee in one direction, and means to feed sheet material intoposition be neath the stencil to latter printed thereon as the stencilpasses beneath the squeegee. ,1 A. A stenciling machine having, incombination, a main frame, an auxiliary frame slidably mounted upon saidmain frame, a stencil mounted upon said auxiliary frame, a reservoir forcoloring material, a squeegee normally closing a discharge openingforsaid reservoir, means to move the squeegee into to open said dischargeopening to permit said coloring material to be deposited upon the have adesign upon the and out of contact with the stencil and also stencil,means to impart a reciprocating movement to the auxiliary frame wherebythe stencil is moved across the surface of the squeegee in onedirection, and means to feed sheet material into position beneath thestencil to have a design upon the latter printed thereon as the stencilpasses beneath the squeegee.

5. A stenciling machine having, in combination, a main frame, anauxiliary frame slidably mounted upon said main frame, a stencil mountedupon said auxiliary frame, a reservoir for coloring material, a squeegeenormally closing a discharge opening for said reservoir, means to vary,the normal inclina tion of the squeegee with relation to the surface ofthe stencil, means to move the squeegee into and out of contact with thestencil and also to open said discharge opening to permit said coloringmaterial to be deposited upon the stencil, means to impart areciprocating movementto the auxiliary frame whereby the stencil ismoved across the surface of the squeegee in one direction, and meanstofeed sheet material into position beneath the stencil to have a designupon the latter printed thereon as the stenc1l passes beneath thesqueegee. a

6. A stenciling machine having, in combination, a main frame, anauxiliary frame slidably mounted upon said main frame, a stencil mountedupon said auxiliary frame, a reservoir for coloring material, a squeegeenormally closing a discharge opening for said reservoir, means to varythe normal inclination of the squeegee with relation to the surface ofthe stencil, means to move thesqueegee into and out of contact with thestencil and also to open said discharge opening to permit said coloringmaterial to be deposited upon the stencil, means to vary the pressure atwhich the squeegee engages the stencil, means to impart a reciprocatingmovement to the auxiliary frame whereby the stencil is moved across thesurface of the squeegee in one direction, and means to feed sheetmaterial into position beneath the stencilto have adesign upon thelatter printed thereon as the stencil passes beneath the squeegee.

7. A stenciling machine having, in combination, a main frame, anauxiliary frame slidably mountedtupon said main frame, a stencil mountedupon said auxiliary frame, a reservoir for coloring material, a squeegeenormally closing a discharge opening for said reservoir, means to varythe normal inclination of the squeegee with relation to the surface ofthe stencil, means to move the squeegee into and out of contact with thestencil and also to open said discharge'opening to permit said coloringmaterial to be deposited upon the stencil, means to vary the pressure atwhich the squeegee engages the stencil, means to imparta reciprocatingmovement to the auxiliary frame whereby the stencil is moved across thesurface of the squeegee in one direction, means to feed sheet materialinto position beneath the stencil to have a design upon the latterprinted thereon as the stencil passes beneath the squeegee, and anoscillating drum supporting the sheet material during the printingoperation.

8. A stenciling machine having, in combination, a main frame, anauxiliary frame slidably mounted upon said main frame, a stencil mountedupon said auxiliary frame, a reservoir for coloring material, a squeegeenormally closing a discharge opening for said reservoir, means to varythe normal inclination of the squeegee with relation to the surface ofthe stencil, means to move the squeegee into and out of'contact with thestencil and also to open said discharge opening to permit said coloringmaterial to be deposited upon the stencil, means to vary the pressure atwhich the squeegee engages the stencil, means to impart a reciprocatingmovement to the auxiliary frame whereby the stencil is moved across thesurface of the squeegee in one direction, a table, means to positionsheet material upon said table, means to move said positioning means outof the path of said sheet material, and means to grip the sheet materialand feed the same into contact with the stencil, whereby a design uponthe latter is printed upon the sheet material as the stencil passesbeneath the squeegee.

9. A stenciling machine having, in combination, a main frame, anauxiliary frame slidably mounted upon said main frame, a stencil mountedupon said auxiliary frame, a reservoir for coloringmaterial, a squeegeenor,- mally closing a discharge opening for sai reservoir, means to varythe normal inclination of the squeegee with relation to the surface ofthe stencil, means to move the squeegee into and out of contact with thestencil and also to open said discharge opening to permit said coloringmaterial to be deposited upon the stencil, ,means to vary the pressureat which the squeegee engages the stencil, means to impart areciprocating movement to the auxiliary frame whereby the stencil ismoved across the surface of the squeegee in one direction, a table,means to position sheet material upon said table, means to move saidpositioning means out of the path of said sheet material, means to gripthe sheet material and feed the same into contact with the stencil,

whereby a design upon the latter is printed In testimony whereof I havehereunto set my hand.

WILFRED R. HAMLIN.

